package jdbclianxi20250325;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.sql.Statement;

/**
 * 执行UPDATE语句
 */
public class JDBCDemo3 {
    public static void main(String[] args) {
        try {
            Class.forName("com.mysql.cj.jdbc.Driver");
            Connection connection = DriverManager.getConnection(
                    "jdbc:mysql://localhost:3306/mysql?characterEncoding=utf8&useSSL=false&serverTimezone=Asia/Shanghai&rewriteBatchedStatements=true",
                    "root",
                    "root"
            );
            Statement statement = connection.createStatement();
            String sql ="update shitou " +
                    "set username='二郎神',password='777777',nickname='神',age=55 " +
                    "where id =1";
            int num = statement.executeUpdate(sql);
            if(num>0){
                System.out.println("修改成功");
            }else{
                System.out.println("修改失败");
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}
